import React from "react";
import styled from "styled-components";

export default function App() {
    const StyledComponents = styled.div`
        background-color: ${props => props.bg || "yellow"};
        width: 100px;
        height: 100px;
    `

    return <div>
        <div>1111</div>
        <StyledComponents bg={"red"}></StyledComponents>
    </div>
}